Combustion apparatus



July 4, 1933. F. A. HAMILTON- I COMBUSTION APPARATUS 'Filed Aug. 26, 1931 Haj ATTORNEYS s ifle Z generally a furnace coinprising w'yvall .11.

FRED-VA". HAMILTON, OE-ALBANY, NewYOR ;Asm mr ummerTo rirzs ivriioiws -& MCALLIQ'TER; met, or AL ANY, EWXQQKQA -CQ11EBORA1IIQNQEQ3TEYW 159mg 2 w I 'oo mwsrio v'ArrARATUs I e sion Ami mp9s; {leer-iii 551509,. e

N inyention Inore particulerly relatesito a. fuel sprayingapparatus comprising anoz-v zle which is siniplefand oheap 'to' manufacture and which is at the same tintie highly :i. eflicient and satisfactoryin roperationgigjMy' invention. also relates to at fuel spraying ap paratus of the foregoing characterco'mbined 9 With a device for delivering air to thespmy in such a Way as to promote-combustion.

My invention will best be'gilndflr'stoodi by x reference to the, accompanying, drawinggin v v k he two l-part's ioflizvhich" 'nifa y "be secured to- WhichI have illustrated a preferred embodig 'Inent thereof and in whieh j i Fig. 1 is asection' throngh jei furna'ee and the oil errere s o in myinvention associated therewith; Y

zle I t ig.1 3 is .aysection taken along theline 330f 2; l I t I Fig, 4 is afragmen'tary planyiewilof an air delivery pipe and the eir, nozzle f atgtache thereto;

'1 Fig.5is-asidewview bflafpbrfipnsofrig.4; e. p e p I n pple, 30 and the; Standard 28,: into the, col

Fig. 6 is aside view'of-the support for Fig. 7 is a front View of Fig.6; q r 7 Like reference characters indicate' like,

parts throughout thefdrafwing; g

Referring now toth "swing, 10 indic a't es provided, with an opening 12 and a furnaee chamber 13 Jer fluid fuel delivery pipe 14' passes throughth'e-opening l2eandiisnonnt edin a collar 1'5 seeuredto and preferably integral withonefeffthe parts of the memi ber 16, the two portions of which may be se-j I nozzlethe front end 'o'f which is located in cured together in adjusted positionbye siiitable'wing nut 17 and bolt, as indie'atedlin Fig. 7 Q The fuel delivery pipe 14 is preferahly'connected to a fuel'supply pipe 18 by means of an intermediatepipe 19 forming a joint as at 20 and 21 with the fuel deliverypipe and the fuel supply pipe; respectively,

An air delivery pipe 22 is preferebly -flattened at its free end to form a fan-shaped advanee ofthe balfie andis bevelledup'ward lyand rearwardly as at 23130 that the'air isfi vFig. Qisa frontviewiofth'e spraying nozi f H p I I t I I .-.th readed col'lar29 v 'Whiohis-intiirn reeeiyed yo'n-theupper end of a serQWthreeidednipple the fuel delivery and ei'rr delivery pipesg,andIl'ar, It {will be;ralppzirentfthetft fuel delivery pipejand the.aindelivery pipe may be Vertically adjusted by soreyy-ing the standard ZS/intOxthecollar;29irnoreiorfiless,

that theg col-larQQendhippIe-Q30 ineyiflb'e-al together emitted and the standard 28 screwedl li' we e i a v n i.6W?bafiie x j against th e spr ziy of fluid fuel 'e'ndzin a form corresponding'toofjlthe jspi'ty. The

pipe 22" ism-Grammy connected to anfair J su'pQ pipel at'242 and243,,respeetively,I'The air delivery pipe is .pr efe'rably'fs'upportedjin,a Y

ooller2$ vhioh is lnturnisecured to one of the-parts 10f the olainping member-16. and to one of' thei parts of -'a clamping member. 26,

ge her;by1mi1iup27 and bolt. The clamping I mbers16'andf2'6 are carriedbye standard .fendfasiindicated in Fig.1], theSCreW-tliiead v 4 '28 preferably *sic w hr a at! i s l w ed end being. received in j anyinteriorly crew- 30, the lower end toff whiohisf rec eivedinijgai screw-threaded opening in. at lease meniherfil.

he; fluid {d rectlyii octhe, b se member 311. I 1, The .fluidyflf el delivery pipe 14 "is; preferonter end as g t 371," leading from the delivery pi-pel t end grrang'edfat, suoh'an angle'as" t0 direct the'flui-d fuel, which is undefpre sgu pe [against tl 'eYfletsurf-ace 36 and adjacent to i "lvhfl PiPP i T [mem ers t es en le l y ws' crewing 'thenipple,30;linto' theg.ibase 31' and "then. serewingtlie collaro'r sleeve 29 on'the 7 serew -th rea'dedi on;its interior aindzatzitsfree end as at 32 ml is adaptedatoirecei ethe V e i screw-threaded end of the head 33 of-a spray,- ingnozzle indicated generally at 34.;The spraying nozzle eonipris'esran iInperforate ,3 'plete or'baffle35 provided with tfiat surface 86.v The head r'of'the nozzle is alsoprovided. r yitha passage 37, preferably Contracted at its: I

the free edge 38 oflthe baffle. vBy directing V V the strea-rn'of fiuidfl el against the flat sur- 1 10p .1

face in the I nannerindicateiit is converted plylpipe 2,4; by a intermediate pipe 2411o on, n e cted to thej delivery' pipe' and supply to a finely divided spray or fog which moves forwardly fan-shaped from the nozzle.

I have found that where the fluid fuel is directed against the baflie at a point somewhat remote, for example, a quarter of an inch from the free edge thereof, that the stream merely drips off from the front edge of the baflie without being converted into a spray. In practice, I have found that with a nozzle the head of which is hexagonal in form, as illustrated, and one and a quarter inches from one side to the other and one and seven-sixteenths inches in total length, that the best results are secured by directing the stream offluid fuel against the surface 36 of the baffle approximately 0.15 of an inch or roughly one-seventh of an inch from the free edge thereof. I have also found that satisfactory results are secured when the passage 37 makes an angle of approximately 28 degrees with the center line ofthe nozzle. The air delivery pipe 22 and nozzle 23 are preferably arranged at an angle to the fuel delivery pipe and the surface 36 of the baffle 35, as best shown in Fig. 1, and the angle may be varied by changing the angular positions of the fluid. fuel delivery pipe 14 and the air delivery pipe 22 with respect to each other.

The fluid fuel is thoroughly atomized by its impingement against the flat surface of the baffle 35 near the free edge 38 thereof. The air nozzle is not intended to atomize the fuel but serves as a carrier for the spray and when it has been thoroughly mixed with the fluid fuel combustion takes place at a desired point in the furnace. It will be obvious that the character of combustion may be controlled by varying the angle between the fuel delivery pipe and the air delivery pipe, and by varying the extent to which the air delivery pipe and the fuel delivery pipe, and particularly the latter, are projected into the furnace.

While I have described my invention in its preferred embodiment it is to be understood that the words which I have used are words of'description and not of limitation and that changes within the scope of the appended claims may be made without departing from the true scope and spirit of my invention in its broader aspects.

What I claim is:

1. I11 combustion apparatus, an imperforate baffle plate provided with a substantially flat surface having a free edge, means for directing liquid fuel under pressure at an angle against said surface and adjacent to the free edge thereof whereby a spray of fuel is produced, and a nozzle having its discharge end in advance of said baffle plate and positioned for projecting a jet of air against said spray.

2. In combustion apparatus, an imperforate baffle plate provided with a substantially flat surface having a free edge, means for directing liquid fuel under pressure at an angle against said surface immediately adjacent to the free edge thereof whereby a sprayof liquid fuel is'produced, and a nozzle having its discharge end in advance of said baffle plate and positioned for projecting a jet of air against said spray and at an angle to said surface.

3. In combustion apparatus, an imperforate baffle plate having a substantially flat surface provided with a free edge, a liquid fuel nozzle so. disposed with respect to said baffle' as to project a ct of fuel under pressure at an angle against said bafl le adjacent the free edge thereof whereby a spray of liquid fuel is produced, and air nozzle located on the side of tie baflie opposite that against which the fuel impinges and so located with respect thereto as to direct a jet of air against said spray.

4. In combustion apparatus, an imporforate baffle plate having a substantially flat surface defining a free edge, a liquid fuel nozzle angularly disposed with respect to said baflle to project a jet of fuel under pressure against said baflie immediately adjacent the free edge whereby a spray of liquid fuel is produced beyond the end of the baffle, an air nozzle having its discharge end in advance of said baffle and positioned for projecting a jet of air against said spray, supply conduits for conveying liquid fuel and air respectively to the fuel and air nozzles, and a stand having relatively adjustable means for supporting the fuel and air supply conduits.

FRED A. HAMILTON. 

